Use PLATFORM_DEVID_NONE define instead of "-1" value because:
 - it brings some meaning,
 - it might point attention why auto device ID was not used.

Signed-off-by: Krzysztof Kozlowski <k...@kernel.org>
---
 drivers/mfd/sta2x11-mfd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c
index 1819c8fe4d8f..fafb3292dce8 100644
--- a/drivers/mfd/sta2x11-mfd.c
+++ b/drivers/mfd/sta2x11-mfd.c
@@ -594,7 +594,7 @@ static int sta2x11_mfd_probe(struct pci_dev *pdev,
 
        /* Just 2 bars for all mfd's at present */
        for (i = 0; i < 2; i++) {
-               err = mfd_add_devices(&pdev->dev, -1,
+               err = mfd_add_devices(&pdev->dev, PLATFORM_DEVID_NONE,
                                      setup_data->bars[i].cells,
                                      setup_data->bars[i].ncells,
                                      &pdev->resource[i],
-- 
2.25.1

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